Hey guys, what is the best way to hollow out brass or plastic about 1/2 inch in diameter and about 1 inch deep? These are about 2 inch cylinder bar type pipes lenghtwise, and 1 inch diameter. There is already a hole to begin with, and I've been using a dremel to hollow out the hole to 1/2, and going in lengthwise 1 inch deep. But I'm wondering is there a more efficient tool like a drill press? I'm imagining a drill press can just stamp down on these pipes for me easily? Am I on the right track in thinking like this? Remember, it's for both brass and plastic cylinder bars. Working on an invention.. Hard to explain, but hopefully I've described enough for you to help. Thank you for your time!

hi there, i am looking to get a new compressor but need a fairly big one but there pretty expensive so i thought is it possible and more importantly safe to get 2 smaller compressors and then connect them both together say using a T joint fitting, therefore you would be double capacity? i have seen youtube videos were it has been done but not sure if its correct cheers